I am not camming but more like an online domme.
I wrote off health insurance premiums, SEP/retirement contributions (I contributed 50k to mine in 2023) , domain name renewals, hosting bill, Reddit automation software, a bunch of Gumroad classes about making money, money spent on competitor research (to see what other creators are doing), PO BOX rental (for email list purposes as it requires a physical address), half of my internet, advertising costs, Quickbook monthly fees, apps I use on my pc for work (smooth scroll, RSI guard), consultations with tax preparers... Paid apps I use on my phone for watermarking, editing etc.
Lots of supplies; 2 new laptops (I use them for work 100% of the time),2 laptop bags (I really did buy them to carry my laptops around because I don't like to leave the house without a laptop in case someone wants to get drained), a sidetrak monitor for my laptop, tons of mouses, usb hubs, usb drives, foldable keyboards, tons of USB cables for different things, laptop stands, phone stands, curved monitor light... almost all tech stuff.
If you have a HSA you can write off contributions to that too.